Adjustable headset

Abstract

An adjustable headset includes a headband and a pair of earpieces attached to the ends of the headband. A number of recesses are formed in a housing. The earpieces are attached to one end of the housing. A retaining device is coupled to the headband. A pair of pawls are formed on the retaining device and are engageable with either recess of the housing when the retaining device and the headband are inserted into the housing. The headband is adjustable relative to the earpieces by an engagement between the pawls and the recesses.

I claim: 
     
       1. An adjustable headset comprising generally a headband and a pair of earpieces attached to both downwardly depending ends thereof, said earpieces being adapted to be disposed over the ears of a user; a coupling between each said earpieces and a respective end of said headband comprising a housing having a lower end or engaging with said earpiece, said housing being substantially longitudinal and having two end walls facing each other, a plurality of recesses being formed in an inner surface of each said end wall of said housing; a retaining device which is slidable in said housing having two pairs of flanges laterally formed on a lower end thereof, one pair of said flanges being disposed above an other pair of said flanges, said flanges extending beyond said retaining device; a pair of resilient pawls being formed on said lower end of said retaining device between two pairs of said flanges, a pair of notches being formed in a lower end of said headband, said flanges of said retaining device being engaged within said notches of said headband so that said headband and said retaining device move in concert in said housing; said pawls of said retaining device being engageable at least one of the recesses recess of said housing; and a relative position between said earpiece and said headband being readily adjustable by an engagement between said pawls and said recesses. 
     
     
       2. An adjustable headset according to claim 1, wherein a head is formed on an upper end of said retaining device, a hole is formed in said head of said retaining device for slidably receiving and retaining said headband. 
     
     
       3. An adjustable headset according to claim wherein a longitudinal groove is formed in said inner surface of each said end wall; a cover has a longitudinal rib formed on each side thereof, an upper end of said cover is bent; said cover is guided to slide along said housing by a sliding engagement between said longitudinal grooves and said longitudinal ribs; and said retaining device and said headband are pushed and biased against said housing by said upper end of said cover.